PSU advice

[Heinzen]

Hello my fellow comrades all over the interwebs.

I'm building a new computer and these are the specs (note that some of the parts are components that I already have on my current desktop)

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i7-3770K 3.5GHz Quad-Core Processor ($229.99 @ Microcenter)
CPU Cooler: Corsair H60 54.0 CFM Liquid CPU Cooler ($69.99 @ Microcenter)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($114.99 @ Microcenter)
Memory: Corsair Vengeance LP 16GB (2 x 8GB) DDR3-1600 Memory ($86.99 @ Newegg)
Storage: Seagate Momentus 7200.4 160GB 2.5" 7200RPM Internal Hard Drive ($53.55 @ Compuvest)
Storage: Seagate Barracuda Green 1TB 3.5" 5900RPM Internal Hard Drive ($103.00 @ Amazon)
Video Card: EVGA GeForce GTX 680 2GB Video Card ($469.99 @ Newegg)
Case: Cooler Master HAF 922 ATX Mid Tower Case ($99.98 @ Newegg)
Power Supply: Corsair Builder 500W 80 PLUS Bronze Certified ATX12V Power Supply ($51.98 @ Newegg)
Optical Drive: LG GH24NS72 DVD/CD Writer ($22.75 @ Amazon)
Total: $1333.21
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-01-20 14:40 EST-0500)


For now I have te CX500 (as stated in the link above). eXtreme Power Supply suggested a 395w PSU (being a 445w PSU recommended).

I do have the intention of chaging that PSU to something better, such as a ZT750 or HX750. But for now, these are out of my budget.

Is it possible that a CX500 will do the job until I'm able to switch between PSUs (consider that the PC is going to be built on april and I might have money for a PSU late may).


Cheers

Edit: Forgot to add these:

System Type: 1 physical CPU
Motherboard: Regular - Desktop
CPU Socket: Socket LGA 1155
CPU: Intel Core i7-3770K 3500 MHz Ivy Bridge
CPU Utilization (TDP): 90% TDP
RAM: 2 Sticks DDR3 SDRAM
Video Card 1: NVIDIA GeForce GTX 680
IDE HDD 7200 rpm: 2 HDDs
DVD-ROM Drive: 1 Drive
56K PCI Modem: Yes
USB: 4 Devices
Fans
Regular: 1 Fan 250mm;
LED: 3 Fans 140mm; 1 Fan 250mm;
Cold Cathodes: 2 Cathodes
Water Cooling Kit: Corsair Hydro H60
Keyboard and mouse: Yes
System Load: 90 %

Minimum PSU Wattage: 395 Watts
Recommended Wattage: 445 Watts

 

[butremor]

gtx 670 costs 100$ less but performs almost the same as 680. just so you know
As for this build i'd recommend ~550/600w psu at least bronze 80+